Portable desk for motor vehicles



FIG. 1 is a perspective view of a portable desk for motor vehiclesshowing my new design therefor;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a right-side elevational view; and,

FIG. 7 is a left-side elevational view.

The ornamental design for a portable desk for motor vehicles, as shown.